A method, device and system for data transmission of a bank credit card machine
A data transmission system and data transmission technology, applied in the field of data transmission of bank credit card machines, can solve the problems of resource waste, high cost, and low efficiency, and achieve the effects of low cost, reduced data security, and high efficiency
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[0032] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0033] In the method, device and system embodiment of the bank card machine data transmission of the present invention, the flow chart of the bank card machine data transmission method is as follows figure 1 shown. figure 1 , the method includes:
[0034] Step S01 encrypts and packs the data collected by the first POS machine successively according to the first format to obtain the first data, and sends the first data to the first server: in this embodiment, the first POS machine is a consumption POS machine, The data collected by the first POS machine can be special data or UnionPay data. In order to distinguish the special data from the UnionPay data, in this embodiment, the code value at the designated position in the special data message ...
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